211222221201112 has 64 divisors (see below), whose sum is σ = 432775110470400. Its totient is φ = 95848052423040.

The previous prime is 211222221201071. The next prime is 211222221201139. The reversal of 211222221201112 is 211102122222112.

It is a super-2 number, since 2×211222221201112² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172101453 + ... + 173324419.

It is an arithmetic number, because the mean of its divisors is an integer number (6762111101100).

Almost surely, 2^{211222221201112} is an apocalyptic number.

211222221201112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211222221201112 is an abundant number, since it is smaller than the sum of its proper divisors (221552889269288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211222221201112 is a wasteful number, since it uses less digits than its factorization.

211222221201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226296 (or 1226292 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 211222221201112 its reverse (211102122222112), we get a palindrome (422324343423224).

The spelling of 211222221201112 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred one thousand, one hundred twelve".